免费工具

木剪力墙设计软件

Design segmented wood shear walls to NDS® and SDPWS fast, accurately, and code compliant with this free version of our wood shear wall design software.

The software allows you to design wood shear walls split into full height panels between openings. The timber shear wall segments share the storey shear based on their stiffness and common wall displacement, and each is then checked against six utility ratios, including wall shear, hold down tension, column tension, column compression, sill crushing, and drift.

A ratio of exactly 0 for column compression or sill crushing means the chord is in net uplift at that load, so the check does not apply. It does not mean the check is comfortably satisfied.

的木剪力墙设计软件 is part of the SkyCiv 快速设计模块. 免费试用下面的工具:

正在加载 SkyCiv 快速设计...

访问 SkyCiv 快速设计

学到更多

About the NDS® Wood Shear Wall Design Software

Wood Shear Wall Design Software Hypotheses

The software only supports the design of timber shear walls using the segmented method; perforated shear walls are not covered.
Segments are defined in the openings table and are numbered left to right.
Chords are braced out of plane by the sheathing and the stud wall, so column slenderness uses the full stud depth rather than the built-up post's least dimension.
The size factor C_F is looked up on a single ply, not on the full built-up chord.
Nails are considered as common nails, at the lengths SDPWS Table A1 tabulates.
The shear-distribution provisions of SDPWS 4.3.5.5 are limited to a line whose walls share the same sheathing materials. This calculator does not use that exception: it solves 4.3.5.5.1 itself, giving every segment the same calculated deflection, which is a rational analysis that holds whether or not the assemblies match.
The full tributary width of the wall resists uplift in the tension post, but only half the stud spacing amplifies compression in the compression post.

Wood Shear Wall Calculator Limitations

Unblocked walls are limited to 16ft in length.
Simultaneous uplift and shear is currently not validated.
When a wall has double sheathing on both sides, the software considers that both are identical (same grade, 厚度, and nailing).
Anchoring of the sill plate is not included. Uplift and linear shear forces are not transferred to the substrate. Please see the output for the governing magnitude for each segment.
Sill crushing is unbounded above F_cp. Nothing caps the bearing overstress ratio, so a badly overloaded post produces a very large deflection.
Framing width is not modelled. Every stud is a single 2x, and only the chords stack plies, so where SDPWS 4.3.7.1(5) calls for 3 in nominal framing and staggered nailing at adjoining panel edges, the software will raise a warning.
Header and trimmer/king stud design is excluded. Only the wall panels between openings are designed here; the lintel spanning an opening and the studs framing it are not sized.
Column compression is checked for the lateral load combination only.

Wood Shear Wall Software Design Checks

The wood shear wall software completes the following design checks, where each check is demand divided by capacity, evaluated per segment in every direction solved.

检查一下 1: Wall Shear. Determined against the SDPWS Table 4.3A nominal capacity for that segment's own sheathing assembly, modified by the following parameters:
- Ω_D (2.0 风, 2.8 地震的)
- φ_aspect, the aspect ratio factor for slim shear walls (1.25 - 0.125 h/b above 2:1).
- φ_framing, the specific gravity adjustment 1 - (0.5 - G) for framing lighter than Douglas-Fir-Larch or Southern Pine.
- φ_pos, 一个 0.92 reduction when the hold-down carrying tension is on the inside face of the end post (注意 10). The note grants this to assemblies with 10d common nails only.
- C_ub for unblocked shear walls.
检查一下 2: Hold-down Tension. Determined against the selected model's rated capacity, rescaled from the specific gravity the catalogue tabulates it at (0.43 SPF/HF, 0.50 DF/SP) to the framing species chosen.
检查一下 3: Column Tension. In the tension chord, against F_t'.
检查一下 4: Column Compression. In the compression chord, against F_c'.
检查一下 5: Sill Crushing. The compression chord bearing across the grain into the sill plate, against F_cp' with the bearing area factor C_b. This is also the term driving the nonlinear part of the deflection, so failing it and a large drift tend to arrive together.
检查一下 6: Drift. The service displacement of the wall line against the selected allowable storey drift. It is a property of the line rather than of any one panel, so the same value repeats across every segment of a direction.

As stated earlier, a ratio of exactly 0 on column compression or sill crushing means the chord is in net uplift at that load, so the check does not apply. It does not mean the check is comfortably satisfied.

Selecting the Wood Shear Wall Drift Limit

One dropdown per force type, of which only the one matching the selected Force type is shown:

风: H/400 (默认), H/500, H/600.
地震的: H/40, H/50 (默认), H/66.7, H/100, H/150.

asce 7 sets no mandatory wind drift limit; the wind options are the commentary range of ASCE 7-16 Appendix CC, and the seismic options are the allowable storey drifts of Table 12.12.1 together with a tighter option. Selecting the limit appropriate to the structure and risk category is your decision as a structural engineer, and the calculator does not infer it.